h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

hey up looks like u might be able to help....iv got a pond with fish init its a new pond i put water proofing onit but when
i transfered my fish into it the water turn green and my fish started to die i have got a filter but it seems to be a losing battle when the sun comes
out the water goes green again is there anyway i can get rid of
the algi with say chemicals?? before all my fishes die ??

Hi Billy/debs

Green water isn't likely to kill fish at all.

What was the waterproofing you put on ?

The fish should be introduced as just one or two after the water has been allowed to settle down for a week or so from first filling it up.

The water goes green in teh sun because even tap water contains nutrients and green algae will grow firts until there are enough other plants established to soak up the nutrients. It also helps when you have floating plants, eg lilly leaves, covering half the surface area.

Good luck and enjoy watching your pond

we just used a pond sealer..and we did only put one guinee fish in..haha for two days we let just one fish swim around..and then we introduced all the others after it seemed okay.. its just sad that we recently lost two big fish in one day..we
thought itd be the water!

hiya would an ultraviolet light get rid of algae ive had four days of cloud and the ponds starting to clear.. but its sticking to the sides of the pond like powder is this what its supposed to do